Prague : The Press and Information Department
Majalah, Jurnal, Buletin
New World Press
Majalah, Jurnal, Buletin
Pekanbaru : PT. Chevron Pacific Indonesia, 2005,
Majalah, Jurnal, Buletin
edited Elliot D. Cohen
Prometheus Books, 2005
Buku Teks
Bartov, Merwin, author
Funk Wagnalis Company, 1952
Buku Teks